| 1 | SWY | Sky Jet AG | Callsign: Swisslink, | CH | AVCODES |
| 2 | SWY | Sunways Airlines AB | Callsign: Sunways, Commenced operations in March 1995. Ceased operations in October 1997. | S | AVCODES |
| 3 | SWY | Skyway Business Travel Ltd. | | GB | AVCODES |
| 4 | SWY | Skyways, CJSC | | RUS | AVCODES |
| 5 | SWY | Sky Jet | | | ICAO1 |
| 6 | SWYA | SEAWAY | | | SCAC4 |
| 7 | SWYB | STEWART, TONY RACING ENTERPRISES LL | | | SCAC4 |
| 8 | SWYD | SAFEWAY DRIVE AWAY INC | | | SCAC4 |
| 9 | SWYF | SMARTWAY TRANSPORATION INC | | | SCAC4 |
| 10 | SWYI | SURE-WAY INC | | | SCAC4 |
| 11 | SWYJ | SHAW, TIMOTHY D | | | SCAC4 |
| 12 | SWYK | SAFEWAY TRUCKING CORPORATION | | | SCAC4 |
| 13 | SWYL | SPACEWAY TRANSPORT LLC | | | SCAC4 |
| 14 | SWYM | SEAWAY YARNS LIMITED | | | SCAC4 |
| 15 | SWYO | STRAITWAY TRANSPORT | | | SCAC4 |
| 16 | SWYQ | SAFE WAY AUTO TRANSPORT LLC | | | SCAC4 |
| 17 | SWYR | SAWYER PETROLEUM | | | SCAC4 |
| 18 | SWYT | STATEWAY TRANSPORTATION INC | | | SCAC4 |
| 19 | SWYX | Stauffer Chemical Co. of Wyoming | added 4/1981; eliminated 4/1990 | | NAKINA |
| 20 | SWYX | Rhone-Poulenc of Wyoming Co. | added 4/1990; 1/1994; eliminated 7/1996 | | NAKINA |
| 21 | SWYX | OCI Chemical Wyoming Co. | added 7/1996; 7/2000-7/2005; eliminated 1/2010 | | NAKINA |
| 22 | SWYX | Stauffer Chemical Co. of Wyoming | added 4/81; eliminated 4/90 | | NRHS |
| 23 | SWYX | Rhone-Poulenc of Wyoming Co. | added 4/90; 1/94; eliminated 7/96 | | NRHS |
| 24 | SWYX | OCI Chemical Wyoming Co. | added 7/96; 7/2000 | | NRHS |
| 25 | SWYX | OCI CHEMICAL WYOMING CO. [RHONE-POULENC OF WYOMING CO.; STAUFFER CHEMICAL CO.] | | | PWRC |
| 26 | SWYX | Stauffer Chemical of Wyoming | | | RSRV |
| 27 | SWYY | SWANNY TRANSPORTATION COMPANY INC | | | SCAC4 |
